Disease Note

First Report of Tomato Spotted Wilt Virus Infecting Peanut in Sri Lanka. K. W. Jayasena, Regional Agricultural Research Station, Angunukolapelessa, Sri Lanka. D. V. R. Reddy, and R. H. S. Rajapakse. ICRISAT, Patancheru 502 324, Andhra Pradesh, India; and University of Ruhuna, Sri Lanka. Plant Dis. 72:912. Accepted for publication 10 June 1988. Copyright 1988 The American Phytopathological Society. DOI: 10.1094/PD-72-0912F.

A disease of peanut (Arachis hypogaea L.) in Sri Lanka was characterized by severe stunting, axillary shoot proliferation, and leaf deformity. The causal agent was identified as tomato spotted wilt virus (TSWV) on the basis of local lesions produced on Vigna unguiculata (L.) Walp. and Petunia hybrida Vilm., transmission by thrips (Frankliniella sp.), and serological reaction in direct antigen coating ELISA (1) using an antiserum produced for TSWV. TSWV was widely distributed in peanut grown in the southern region of Sri Lanka. TSWV was also identified by ELISA in V. radiata (L.) Wilczek and V. mungo (L.) Hepper showing severe leaf curl and stunting and in Glycine max (L.) Merr. showing mosaic, puckering of leaves, and stunting. TSWV has not previously been reported in Sri Lanka. Reference: (1) H. A. Hobbs et al. Plant Dis. 71:747, 1987.